<!doctype html>
<html lang="en">
 <head>
  <meta charset="UTF-8">
  <title>Document</title>
  <link rel="stylesheet" href="css/jquery-ui.css">
  <link rel="stylesheet" href="css/bootstrap.css">
 </head>
 <body>
  <a id="btn1" href="#" class="btn btn-success">click me</a>
  <span id="btn2" class="btn btn-danger">click me</span>
  <button id="btn3" class="btn btn-warning">click me</button>
  <script src="js/jquery-1.11.3.js"></script>
  <script src="js/jquery-ui.js"></script>
  <script>
    //$("#btn1").button();
    //$("#btn2").button();
    //$("#btn3").button();
  </script>
 </body>
</html>
